github.com/vmware/govmomi@v0.51.0/cli/datastore/disk/info.go (about)

     1  // © Broadcom. All Rights Reserved.
     2  // The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
     3  // SPDX-License-Identifier: Apache-2.0
     4  
     5  package disk
     6  
     7  import (
     8  	"context"
     9  	"flag"
    10  	"fmt"
    11  	"io"
    12  	"strings"
    13  	"text/tabwriter"
    14  
    15  	"github.com/vmware/govmomi/cli"
    16  	"github.com/vmware/govmomi/cli/flags"
    17  	"github.com/vmware/govmomi/object"
    18  )
    19  
    20  type info struct {
    21  	*flags.DatastoreFlag
    22  
    23  	c bool
    24  	d bool
    25  	p bool
    26  
    27  	uuid bool
    28  }
    29  
    30  func init() {
    31  	cli.Register("datastore.disk.info", &info{})
    32  }
    33  
    34  func (cmd *info) Register(ctx context.Context, f *flag.FlagSet) {
    35  	cmd.DatastoreFlag, ctx = flags.NewDatastoreFlag(ctx)
    36  	cmd.DatastoreFlag.Register(ctx, f)
    37  
    38  	f.BoolVar(&cmd.c, "c", false, "Chain format")
    39  	f.BoolVar(&cmd.d, "d", false, "Include datastore in output")
    40  	f.BoolVar(&cmd.p, "p", true, "Include parents")
    41  	f.BoolVar(&cmd.uuid, "uuid", false, "Include disk UUID")
    42  }
    43  
    44  func (cmd *info) Process(ctx context.Context) error {
    45  	if err := cmd.DatastoreFlag.Process(ctx); err != nil {
    46  		return err
    47  	}
    48  	return nil
    49  }
    50  
    51  func (cmd *info) Usage() string {
    52  	return "VMDK"
    53  }
    54  
    55  func (cmd *info) Description() string {
    56  	return `Query VMDK info on DS.
    57  
    58  Examples:
    59    govc datastore.disk.info disks/disk1.vmdk`
    60  }
    61  
    62  func fullPath(s string) string {
    63  	return s
    64  }
    65  
    66  func dsPath(s string) string {
    67  	var p object.DatastorePath
    68  
    69  	if p.FromString(s) {
    70  		return p.Path
    71  	}
    72  
    73  	return s
    74  }
    75  
    76  var infoPath = dsPath
    77  
    78  var queryUUID func(string) string
    79  
    80  type infoResult []object.VirtualDiskInfo
    81  
    82  func (r infoResult) Write(w io.Writer) error {
    83  	tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
    84  
    85  	for _, info := range r {
    86  		fmt.Fprintf(tw, "Name:\t%s\n", infoPath(info.Name))
    87  		if queryUUID != nil {
    88  			fmt.Fprintf(tw, "  UUID:\t%s\n", queryUUID(info.Name))
    89  		}
    90  		fmt.Fprintf(tw, "  Type:\t%s\n", info.DiskType)
    91  		fmt.Fprintf(tw, "  Parent:\t%s\n", infoPath(info.Parent))
    92  	}
    93  
    94  	return tw.Flush()
    95  }
    96  
    97  type chainResult []object.VirtualDiskInfo
    98  
    99  func (r chainResult) Write(w io.Writer) error {
   100  	for i, info := range r {
   101  		fmt.Fprint(w, strings.Repeat(" ", i*2))
   102  		fmt.Fprintln(w, infoPath(info.Name))
   103  	}
   104  
   105  	return nil
   106  }
   107  
   108  func (cmd *info) Run(ctx context.Context, f *flag.FlagSet) error {
   109  	if f.NArg() != 1 {
   110  		return flag.ErrHelp
   111  	}
   112  
   113  	dc, err := cmd.Datacenter()
   114  	if err != nil {
   115  		return err
   116  	}
   117  
   118  	ds, err := cmd.Datastore()
   119  	if err != nil {
   120  		return err
   121  	}
   122  
   123  	m := object.NewVirtualDiskManager(ds.Client())
   124  
   125  	if cmd.uuid {
   126  		queryUUID = func(name string) string {
   127  			id, _ := m.QueryVirtualDiskUuid(ctx, name, dc)
   128  			return id
   129  		}
   130  	}
   131  
   132  	info, err := m.QueryVirtualDiskInfo(ctx, ds.Path(f.Arg(0)), dc, cmd.p)
   133  	if err != nil {
   134  		return err
   135  	}
   136  
   137  	if cmd.d {
   138  		infoPath = fullPath
   139  	}
   140  
   141  	var r flags.OutputWriter = infoResult(info)
   142  
   143  	if cmd.c {
   144  		r = chainResult(info)
   145  	}
   146  
   147  	return cmd.WriteResult(r)
   148  }